/Engine/Plugins/Compositing/Composure/Source/Composure/Classes/CompositingElement.h
Determines whether current composure element is a child of another composure element or not.
bool Whether current composure actor is a child actor or not.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintPure, Category="Composure|Element") bool IsSubElement() const